code: def test_empty_struct(self):
      self.assertEqual(dshape("{}"), DataShape(Record([])))
  
imports: from __future__ import absolute_import, division, print_function
  import ctypes
  import unittest
  import pytest
  from datashader import datashape
  from datashader.datashape import dshape, error, DataShape, Record
label_desc: Use image node_id 13 for calling the TestDataShapeCreation obj's underlying member method code with example usage: obj.test_empty_struct() without return types